Body Systems
Compare the arteries and veins.
Arteries: take blood away from the heart.
Veins: brings blood back to the heart.
What are the 4 macromolecules?
1. Carbohydrates
2. Lipids
3. Nucleic Acids
4. Proteins
What organelle regulates the transport of materials in and out of the cell?
plasma/cell membrane
What are the 4 stages of mitosis?
1. Prophase
2. Metaphase
3. Anaphase
4. Telophase
What is meant by the saying "survival of the fittest"?
the organism most fit for the environment will survive and reproduce.
What is the function of the testes?
the pair of organs that produces sperm and produces testosterone.
What are the functions of carbohydrates?
Breaks down sugars (ex. Glucose) to supply energy to the cells.
What organelle sorts and packages proteins for other parts of the cell?
Golgi Appartatus
During what cell cycle stage do chromosomes replicate?
S Phase
Who is the father of evolution?
Charles Darwin
What is the function of the ovaries?
produce and cycle eggs and produce estrogen and progesterone
Name two examples of nucleic acids
DNA and RNA
What transport goes from a high to low concentration of molecules?
Passive transport (diffusion, facilitated diffusion, osmosis)
What happens during metaphase in cell division?
The chromosomes line up along the center (equator) of the cell.
What does it mean if an organism is adapting?
they have characteristics that increases an organism’s ability to survive and reproduce in its environment.
Name three parts of the brain
Cerebellum.
Frontal Lobe.
Occipital Lobe.
Parietal Lobe.
Temporal Lobe.
What are the charges of protons, neutrons, and electrons?
Protons (+)
Neutrons (0)
Electrons (-)
What transport moves water through the plasma membrane?
Osmosis
Explain the difference between a begign tumor and malignant tumor.
Begign - noncancerous tumor.
Malignant - cancerous tumor.
Give an example of natural selection.
Bird Beaks changing their size
Compare T cells and B cells.
T cells: destroys infected cells.
B cells: makes antibodies.
What is a catalyst?
a substrate that speeds up the rate of a chemical reaction.
(Lower Activation Energy = Quicker Reaction Time)
State the difference between passive and active transport.
Passive - no energy required.
Active - energy required.
Explain the process of apoptosis.
Programmed cell death to stop cells from becoming cancerous.
What is evolution?
a change in the characteristics of a species over several generations that relies on the process of natural selection.